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TLS Online TPP Program

#Question id: 648

Enzyme catalysis is regulated by a number of mechanisms. Also, the flux through metabolic pathways must be regulated. Given the metabolic pathway below, which choice accurately describes the regulation of compound G levels?

#Section 2: General Biology

  1. G is regulated by chemical modification of the enzyme that catalyzes step 3.

  2. G serves as an inhibitory effector of the allosteric enzyme that catalyzes step 3.

  3. G inhibits the expression of the enzyme that catalyzes the formation of D.

  4. The reversible reaction of B to D is converted to an irreversible reaction.

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TLS Online TPP Program

#Question id: 12935

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

 The integrity of the RNA should always be checked by _____
TLS Online TPP Program

#Question id: 12936

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Adding small double-stranded molecules with one internal site for a restriction endonuclease,termed ______ to cDNA.
TLS Online TPP Program

#Question id: 12937

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Choose the incorrect statement about Yeast Artificial Chromosome vectors.
TLS Online TPP Program

#Question id: 12938

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

What is the main advantage of using Yeast Artificial Chromosome based vector over other vectors?
1. It has ability to clone very large fragments of DNA.
2. YAC vectors do not contain origin of replication sites 
3. It has insert  range up to 2000 kb.
4. It help in genome mapping and sequencing projects.
TLS Online TPP Program

#Question id: 12939

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Choose the incorrect statement for the production of site-directed mutations.
TLS Online TPP Program

#Question id: 12940

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

 Choose the correct order for the steps involve in Protein engineering.
1. Protein modelling
2. Protein crystallography
3. Site-directed mutations
4. Comparison with entries in databases of known proteins.